EP0015702B1 - Crystalline zeolite, synthesis and use thereof - Google Patents
Crystalline zeolite, synthesis and use thereof Download PDFInfo
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- EP0015702B1 EP0015702B1 EP80300561A EP80300561A EP0015702B1 EP 0015702 B1 EP0015702 B1 EP 0015702B1 EP 80300561 A EP80300561 A EP 80300561A EP 80300561 A EP80300561 A EP 80300561A EP 0015702 B1 EP0015702 B1 EP 0015702B1
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- zeolite
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- psig
- cation
- tetraethylammonium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0209—Impregnation involving a reaction between the support and a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
- C01B39/46—Other types characterised by their X-ray diffraction pattern and their defined composition
- C01B39/48—Other types characterised by their X-ray diffraction pattern and their defined composition using at least one organic template directing agent
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
- C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
- C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
- C07C2/08—Catalytic processes
- C07C2/12—Catalytic processes with crystalline alumino-silicates or with catalysts comprising molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/02—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
- C10G11/04—Oxides
- C10G11/05—Crystalline alumino-silicates, e.g. molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/06—Catalytic reforming characterised by the catalyst used
- C10G35/095—Catalytic reforming characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/58—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins
- C10G45/60—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used
- C10G45/64—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to change the structural skeleton of some of the hydrocarbon content without cracking the other hydrocarbons present, e.g. lowering pour point; Selective hydrocracking of normal paraffins characterised by the catalyst used containing crystalline alumino-silicates, e.g. molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
- C10G47/10—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used with catalysts deposited on a carrier
- C10G47/12—Inorganic carriers
- C10G47/16—Crystalline alumino-silicate carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/26—After treatment, characterised by the effect to be obtained to stabilize the total catalyst structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/42—Addition of matrix or binder particles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
Definitions
- the zeolite When employed either as an adsorbent or as a catalyst the zeolite should be dehydrated at least partially, suitably by heating to a temperature in the range of 200° to 600°C in an atmosphere such as air, nitrogen, steam, etc. and at atmospheric or subatmospheric pressures for a time between 1 and 48 hours. Dehydration can also be performed at lower temperature merely by placing a catalyst in a vacuum but a longer time is required to obtain sufficient dehydration.
- reforming stocks can be reformed employing a temperature between 371.2°C (700°F) and 537.8°C (1000°F).
- the pressure can be between 790.8 kPa (100 psig) and 6996.1 kPa (1000 psig) but is preferably between 1480.3 kPa (200 psig) and 4927.7 kPa (700 psig).
- the liquid hourly space velocity is generally between 0.1 and 10, preferably between 0.5 and 4 and the hydrogen to hydrocarbon mole ratio is generally between 1 and 20, preferably between 4 and 12.
- a further sample of the zeolite was subjected to ammonium chloride exchange reducing the Na level to 0.2 weight percent from an initial value of 6.1 weight percent.
- a sample of the exchanged zeolite was evaluated for hydrocarbon cracking activity in the n-hexane cracking test (alpha test), and showed a cracking activity about 23 times greater than a standard silica-alumina catalyst.
Description
- This invention relates to a new crystalline zeolite, to a method for synthesising it, and to its use, inter alia as hydrocarbon conversion catalyst.
- Many crystalline zeolites are known, in most cases as aluminosilicates. Some occur (at least so far) only in nature, for instance paulingite and merlinoite; some occur only as a result of synthesis, for instance zeolites A and ZSM-5; and some occur in both natural and synthetic forms, for instance mordenite, a synthetic counterpart of which is known as Zeolon, and faujasite, synthetic counterparts of which are known as zeolites X and Y. Counterparts are of course demonstrated as such by correspondence of their X-ray diffraction data, the indicia by means of which the individuality of a zeolite is established. Such data are a manifestation of the particular geometry of the three-dimensional lattice, formed of Si04 and in most cases AI04 tetrahedra crosslinked by the sharing of oxygen atoms and including sufficient cationic complement to balance the resulting negative charge on any A104 tetrahedra, of which a zeolite consists.
- We have now discovered a zeolite having a lattice structure previously unknown, as evidenced by its X-ray diffraction data, which we call ZSM-25.
- According to the present invention a crystalline aluminosilicate zeolite, ZSM-25, has a lattice constituted by Si04 and A104 tetrahedra crosslinked by the sharing of oxygen atoms and characterized by the following interplanar spacings:
- Zeolite ZSM-25 possesses the formula
- The original cations can be replaced in accordance with techniques well known at least in part by ion exchange with other cations. Preferred replacing cations include metal ions, ammonium ions, and mixtures of the same. Particularly preferred cations are those which render the zeolite catalytically active, especially for hydrocarbon conversion. These include hydrogen, calcium magnesium, zinc, rare earth metals, aluminum, metals of Groups II and VIII of the Periodic Table, nickel and manganese. Pore blockage by organic cations or residues may require clearance by calcination before ion exchange is attempted, suitably in an atmosphere of air steam, nitrogen, hydrogen or oxygen at a temperature of 400 to 900°C.
- Zeolite ZSM-25 is useful as an absorbent and is catalytically active in a broad area of hydrocarbon conversion reactions such as polymerization, oligomerization, isomerization and hydrocracking. ZSM-25 is thermally stable under the conditions encountered in catalytic cracking and catalyst regeneration.
- ZSM-25 can be used either in the alkali metal form, e.g. the sodium form, the ammonium form, the hydrogen form, or another univalent or multivalent cationic form. The zeolite can also be used in intimate combination with a hydrogenating component such as tungsten, vanadium, molybdenum, rhenium, nickel, cobalt, chromium, magnesium, or a noble metal, such as platinum or palladium where a hydrogenation dehydrogenation function is to be performed. Such components can be exchanged into the zeolite impregnated therein or physically intimately admixed therewith. In the case of platinum, impregnation can be effected by treating the zeolite with a platinum metal-containing ion such as chloroplatinic acid, platinuous chloride and various compounds containing the platinum amine complex. Combinations of metals and methods for their introduction can also be used. The metal may be present in the anion or cation of the compound, the cationic complex, e.g., Pt(NH,),C'4, being particularly useful. For some hydrocarbon conversion processes ZSM-25 requires no noble metal component such as in low temperature, liquid phase orthoxylene isomerization.
- In the synthesis of ZSM-25 an organic nitrogen compound containing a cation such as tetraethylammonium is employed, a preferred compound being tetraethylammonium bromide, although the chloride sulphate and hydroxide may also be advantageously used. A variety of alkali metal cations may be used suitably defined as including all alkali metal ions derived from alkali metal oxide or hydroxide as well as alkali metal ions included in alkali metal silicates and aluminates (not including alkali metal salts such as sodium chloride or sodium sulfate which may be derived from neutralization of added inorganic acids such as HCI or HIS04 or acid salts such as Al,(S04),). Nonlimiting examples of such suitable alkali metal ions include sodium and potassium.
- When employed either as an adsorbent or as a catalyst the zeolite should be dehydrated at least partially, suitably by heating to a temperature in the range of 200° to 600°C in an atmosphere such as air, nitrogen, steam, etc. and at atmospheric or subatmospheric pressures for a time between 1 and 48 hours. Dehydration can also be performed at lower temperature merely by placing a catalyst in a vacuum but a longer time is required to obtain sufficient dehydration.
- Zeolite ZSM-25 can be synthesised by preparing a solution containing sources of tetraethylammonium cations, sodium oxide, an oxide of aluminum, an oxide of silicon, and water having a composition in terms of mole ratios of oxides falling within the following ranges:
- In a specific, preferred procedure ZSM-25 is synthesized from a mixture containing colloidal silica, sodium aluminate, sodium hydroxide, tetraethylammonium compounds, and water at a crystallization temperature of 135°C, at a pressure of 790.8-1307.9 kPa (100-175 psig). The product is dried at 110°C for about 16 to 24 hours. Milder conditions may be employed for the drying if desired, such as at room temperature under vacuum.
- A variety of materials can be employed to supply the appropriate oxide in the reaction mixture. Such compositions include for an aluminosilicate, sodium aluminate, colloidal silica, sodium hydroxide, and tetraethylammonium compounds such as tetraethylammonium bromide. Each oxide component utilized in the reaction mixture for preparing ZSM-25 can be supplied by one or more initial reactants and they can be mixed together in any order. For example, sodium oxide can be prepared by an aqueous solution of sodium hydroxide or by an aqueous solution of sodium silicate; tetraethylammonium cation can be supplied by tetraethylammonium hydroxide, tetraethylammonium bromide, or tetraethylammonium chloride or tetraethylammonium sulfate. The reaction mixture can be prepared either batchwise or continuously. Crystal size and crystallization time will vary with the nature of the reaction mixture employed.
- ZSM-25 may be formed in a wide variety of particle sizes. The particles can be in the form of a powder, a granule, or molded product, such as extrudate having particle size sufficient to pass through a 2-mesh (Tyler) screen and be retained on a 400-mesh (Tyler) screen. In cases where a catalyst is molded, such as by extrusion, the aluminosilicate can be extruded before drying or dried or partially dried and then extruded. As in the case of many catalysts, it can be desirable to incorporate ZSM-25 in a matrix material resistant to the temperatures and other conditions employed in organic conversion processes, as described in our European Specification 0,001,695.
- Employing a ZSM-25 catalyst containing a hydrogenation component, heavy petroleum residual stocks, cycles stocks and other hydrocrackable charge stocks can be hydrocracked at temperatures between 204.5°C (400°F) and 440.6°C (825°F) using molar ratios of hydrogen to hydrocarbon charge in the range of 2 to 80. The pressure employed will vary between 170.3 kPa (10 psig) and 17338.3 kPa (2,500 psig) and the liquid hourly space velocity between 0.1 and 10.
- Employing the zeolite for catalytic cracking, hydrocarbon cracking stocks can be cracked at a liquid hourly space velocity between about 0.5 and 50, a temperature between about 287.8°C (550°F) and 593.4°C (1100°F), a pressure between about subatmospheric and several hundred atmospheres.
- Employing a catalytically active form of ZSM-25 containing a hydrogenation component, reforming stocks can be reformed employing a temperature between 371.2°C (700°F) and 537.8°C (1000°F). The pressure can be between 790.8 kPa (100 psig) and 6996.1 kPa (1000 psig) but is preferably between 1480.3 kPa (200 psig) and 4927.7 kPa (700 psig). The liquid hourly space velocity is generally between 0.1 and 10, preferably between 0.5 and 4 and the hydrogen to hydrocarbon mole ratio is generally between 1 and 20, preferably between 4 and 12.
- The zeolite can be used for hydroisomerization of normal paraffins, when provided with a hydrogenation component, e.g., platinum. Hydroisomerization is carried out at a temperature between 93.4°C (200°F) and 371.2°C (700°F), preferably 148.9°C (300°F) and 287.8°C (550°F) and with a liquid hourly space velocity between 0.01 and 2, preferably between 0.25 and 0.50 employing hydrogen such that the hydrogen to hydrocarbon mole ratio is between 1:1 and 5:1. Additionally, the catalyst can be used for olefin and aromatic isomerization employing temperatures between -1.2°C (30°F) and 482.3°C (900°F), preferably 65.6°C (150°F) to about 315.6°C (600°F).
- The zeolite can also be used for the oligomerization (polymerization) of olefins at a temperature of about 260°C (500°F) to about 482.3°C (900°F) and a liquid hourly space velocity of about 0.1 to about 10: and for reducing the pour point of gas oils, at a liquid hourly space velocity between about 1 and about 30 and at a temperature between about 426.7°C (800°F) and about 593.4°C (1100°F). Other reactions which can be catalysed by the zerolite containing a metal, e.g., platinum, include hydrogenation-dehydrogenation and desulfurization.
- In the examples which follow by way of illustration of the invention, adsorption data was determined as follows:
- A weighed sample of the zeolite was contacted with the pure adsorbate vapor in an adsorption chamber at a pressure less than the vapor-liquid equilibrium pressure of the adsorbate at room temperature. This pressure was kept constant during the adsorption period, which did not exceed about eight hours. Adsorption was complete when a constant pressure in the adsorption chamber was reached, i.e., 12 mm of mercury for water and 20 mm for n-hexane and cyclohexane. The increase in weight was calculated as the adsorption capacity of the same.
- Zeolite ZSM-25 was synthesized from a mixture formed from 228.0 grams colloidal silica (30% Si02), 30.0 grams NaAlOz, 8.7 grams sodium hydroxide (NaOH), 330.0 grams tetraethylammonium bromide (CH3CH2)QNBr) and 282 grams water (H20), and having the following molar composition expressed in terms of mole ratios:
- Crystallization was carried out in a glass-lined stirring autoclave at 135°C (275°F) and a pressure of 790.9-1307.9 kPa (100-175 psig). The time for crystallization was four days. The resulting solid product was cooled to room temperature, removed, filtered, washed with water and dried at 110°C (230°F).
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-
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- A sample of the product of Example I was calcined for four hours at 500°C in a muffle furnace. Some loss in diffracted intensity and some broadening of lines indicated some lattice distortion with some loss in crystallinity. The X-ray diffraction pattern of the calcined sample is shown in Fig. 2 and Table III.
- A further sample of the zeolite was subjected to ammonium chloride exchange reducing the Na level to 0.2 weight percent from an initial value of 6.1 weight percent. A sample of the exchanged zeolite was evaluated for hydrocarbon cracking activity in the n-hexane cracking test (alpha test), and showed a cracking activity about 23 times greater than a standard silica-alumina catalyst.
- In an oligomerization test run to illustrate the activity of the exchanged zeolite for hydrocarbon conversion 371.2°C (700°F) the sample converted 11.6 weight percent propylene to propylene oligomers.
- The alpha test was carried out as follows. n-hexane diluted with helium was passed over a 1.0 cc sample of the c atalyst at a liquid hourly space velocity=1 and at 482.3°C (900° F). The conversion of hexane to cracked products at 5 minutes on stream was equal to 22.7%. This calculates to a relative cracking activity (α value) of 22.9.
- The oligomerization test was carried out as follows: Propylene was charged at the rate of 16.66 cc/min (1000 cc/hr) over a 0.259 g (0.67 cc) sample of the catalyst at 371.2°C (700°F) for a two-hour period. A liquid balance was made during the second hour on stream. On the basis of recovered hydrocarbons 14.4% of the propylene was converted. Of this, 83.0% was converted to C4+ and 57.1 % C5+ hydrocarbons.
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/016,248 US4247416A (en) | 1979-02-28 | 1979-02-28 | Crystalline zeolite ZSM-25 |
US16248 | 1979-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0015702A1 EP0015702A1 (en) | 1980-09-17 |
EP0015702B1 true EP0015702B1 (en) | 1982-05-19 |
Family
ID=21776144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP80300561A Expired EP0015702B1 (en) | 1979-02-28 | 1980-02-26 | Crystalline zeolite, synthesis and use thereof |
Country Status (3)
Country | Link |
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US (1) | US4247416A (en) |
EP (1) | EP0015702B1 (en) |
DE (1) | DE3060432D1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4842836A (en) * | 1982-03-29 | 1989-06-27 | Uop | Zeolite LZ-133 |
DE3246495A1 (en) * | 1982-12-16 | 1984-06-20 | Bayer Ag, 5090 Leverkusen | NEW CATALYST, A METHOD FOR PRODUCING IT, AND AN ISOMERIZATION METHOD IN THE PRESENT OF THIS CATALYST |
US4554146A (en) * | 1983-11-10 | 1985-11-19 | Exxon Research And Engineering Co. | Process for preparing a zeolite of the L type using organic templates |
AU572991B2 (en) * | 1984-06-11 | 1988-05-19 | Mobil Oil Corp. | 30-70 per cent crystalline zeolite beta |
US4661332A (en) * | 1985-07-29 | 1987-04-28 | Exxon Research And Engineering Company | Zeolite (ECR-18) isostructural with paulingite and a method for its preparation |
CN1066426C (en) * | 1994-02-22 | 2001-05-30 | 埃克森化学专利公司 | Oligomerization and catalyst therefor |
US5759950A (en) * | 1995-06-10 | 1998-06-02 | China Petrochemical Corporation | Catalyst supported with noble metal(s) for the isomerization of alkylaromatics |
US5882624A (en) * | 1997-01-29 | 1999-03-16 | Englehard Corporation | ETS-14 crystalline titanium silicate molecular sieves, manufacture and use thereof |
US6706931B2 (en) | 2000-12-21 | 2004-03-16 | Shell Oil Company | Branched primary alcohol compositions and derivatives thereof |
KR101555149B1 (en) | 2014-07-08 | 2015-10-07 | 포항공과대학교 산학협력단 | A selective carbon dioxide separation method using ZSM-25 zeolites as adsorbents |
KR101598723B1 (en) * | 2014-12-30 | 2016-03-03 | 포항공과대학교 산학협력단 | A manufacturing process of PST-20 zeolites and a selective separation method using PST-20 zeolites as adsorbent |
CA3024570A1 (en) | 2016-05-24 | 2017-11-30 | Exxonmobil Chemical Patents Inc. | A synthetic zeolite comprising a catalytic metal |
CN108025920B (en) * | 2016-06-23 | 2021-04-13 | 旭化成株式会社 | MWF type zeolite |
JP6797045B2 (en) * | 2017-02-17 | 2020-12-09 | 旭化成株式会社 | MWF type zeolite |
JP6886309B2 (en) * | 2017-02-21 | 2021-06-16 | 旭化成株式会社 | Complex |
JP6928488B2 (en) * | 2017-06-09 | 2021-09-01 | 旭化成株式会社 | MWF type zeolite |
JP6975635B2 (en) * | 2017-12-27 | 2021-12-01 | 旭化成株式会社 | MWF type zeolite |
JP7109184B2 (en) | 2017-12-27 | 2022-07-29 | 旭化成株式会社 | MWF-type zeolite and gas separation method |
JP7101598B2 (en) * | 2018-11-26 | 2022-07-15 | 花王株式会社 | Three-dimensional object precursor treatment agent composition |
CA3123721A1 (en) | 2019-01-16 | 2020-07-23 | Exxonmobil Research And Engineering Company | Sinter resistant metal species in zeolites |
US10703986B1 (en) | 2019-01-30 | 2020-07-07 | Exxonmobil Research And Engineering Company | Selective oxidation using encapsulated catalytic metal |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3012853A (en) * | 1957-08-26 | 1961-12-12 | Union Carbide Corp | Crystalline zeolite |
US3306922A (en) * | 1961-03-22 | 1967-02-28 | Union Carbide Corp | Molecular sieve adsorbents |
US3709979A (en) * | 1970-04-23 | 1973-01-09 | Mobil Oil Corp | Crystalline zeolite zsm-11 |
US3832449A (en) * | 1971-03-18 | 1974-08-27 | Mobil Oil Corp | Crystalline zeolite zsm{14 12 |
US3972983A (en) * | 1974-11-25 | 1976-08-03 | Mobil Oil Corporation | Crystalline zeolite ZSM-20 and method of preparing same |
US4046859A (en) * | 1974-11-29 | 1977-09-06 | Mobil Oil Corporation | Crystalline zeolite and method of preparing same |
NZ185397A (en) * | 1976-11-04 | 1979-12-11 | Mobil Oil Corp | Crystalline aluminosilicate zeolites and use as catalysts |
US4209498A (en) * | 1976-11-05 | 1980-06-24 | Imperial Chemical Industries Limited | Silica-containing material FU-1 |
US4209499A (en) * | 1977-10-21 | 1980-06-24 | Mobil Oil Corporation | Crystalline zeolite ZSM-43 synthesis thereof |
-
1979
- 1979-02-28 US US06/016,248 patent/US4247416A/en not_active Expired - Lifetime
-
1980
- 1980-02-26 DE DE8080300561T patent/DE3060432D1/en not_active Expired
- 1980-02-26 EP EP80300561A patent/EP0015702B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4247416A (en) | 1981-01-27 |
DE3060432D1 (en) | 1982-07-08 |
EP0015702A1 (en) | 1980-09-17 |
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